Mussaenda frondosa
Dhobi Tree
Mussaenda philippica
Agboy
Mycelis muralis
Wall Lettuce
Myosotis alpestris
Alpine Forget-me-not
Myosotis arvensis
Field Forget-me-not
Myosotis discolor
Changing Forget-me-not
Myosotis laxa
Tufted Forget-me-not
Myosotis ramosissima
Early Forget-me-not
Myosotis scorpioides
Water Forget-me-not
Myosotis secunda
Creeping Forget-me-not
Myosotis stricta
Myosotis sylvatica
Wood Forget-me-not
Myosurus minimus
Mousetail
Myrica gale
Bog-myrtle
Myriophyllum alterniflorum
Alternate Water-milfoil
Myriophyllum aquaticum
Parrot's-feather
Myriophyllum spicatum
Spiked Water-milfoil
Myrrhis odorata
Sweet Cicely
Narcissus hispanicus
Spanish Daffodil
Narcissus macrolobus
Pale-flowered Daffodil
Narcissus nobilis
Large-flowered Daffodil
Narcissus obvallaris
Tenby Daffodil
Narcissus pseudonarcissus
Daffodil
Narcissus radiiflorus
Daffodil
Narcissus x cyclazetta
Head-to-head Daffodil
Nardus stricta
Mat-grass
Narthecium ossifragum
Bog Asphodel
Nasturtium officinale
Water-cress
Neottia cordata
Lesser Twayblade
Neottia nidus-avis
Bird's-nest Orchid
Neottia ovata
Common Twayblade
Nepenthes truncata
Nepeta x faassenii
Garden Cat-mint
Nerine bowdenii
Cape Flower
Nerine flexuosa
Nerium oleander
Oleander
Neustanthus phaseoloides
Tropical Kudzu
Nicandra physalodes
Apple-of-Peru
Nigritella nigra
Black Vanilla Orchid
Noccaea caerulescens
Alpine Penny-cress
Nonea lutea
Yellow Nonea
Nothoscordum borbonicum
Honeybells
Nuphar lutea
Yellow Water-lily
Nymphaea alba
White Water-lily
Nymphaea lotus
Egyptian lotus
Nymphaea x marliacea
Coloured Water-lily
Nymphoides peltata
Fringed Water-lily
Ochna serrulata
Small-leaved Plane
Ocimum americanum
American Basil
Ocinum americanum
American Basil
Odontites vernus
Red Bartsia
Oenanthe aquatica
Fine-leaved Water-dropwort
Oenanthe crocata
Hemlock Water-dropwort
Oenanthe fistulosa
Tubular Water-dropwort
Oenanthe lachenalii
Parsley Water-dropwort
Oenanthe pimpinelloides
Corky-fruited Water-dropwort
Oenanthe silaifolia
Narrow-leaved Water-dropwort
Oenothera biennis
Small-flowered Evening-primrose
Oenothera glazioviana
Large-flowered Evening-primrose
Oenothera stricta
Fragrant Evening-primrose
Olearia macrodonta
New Zealand Holly
Onobrychis viciifolia
Sainfoin
Ononis arvensis
Ononis reclinata
Small Restharrow
Ononis repens
Common Restharrow
Ononis spinosa
Spiny Restharrow
Ophiopogon jaburan
Giant Lilyturf
Ophrys apifera
Bee Orchid
Ophrys fuciflora
Late Spider-orchid
Ophrys insectifera
Fly Orchid